Peeking Into Google

An informative article about Google that gives you a small peek into the inner workings.  A minimal Red Hat running Google filesystem on a ton of $1,000 PC's.  They do state that they have their own kernel patches. The question I have is, do they plan on ever making these available to the general Linux community?  That would be nice.  If this is a topic that interests you, you may also want to take a look at this.  I'm watching it right now...
--jeremy